diff --git a/CHANGELOG.md b/CHANGELOG.md
index 613d3c8278..8d9615ac5b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -116,6 +116,8 @@ release.
   ([#328](https://github.com/open-telemetry/semantic-conventions/pull/328))
 - Added `os.build_id` resource attribute.
   ([#293](https://github.com/open-telemetry/semantic-conventions/pull/293))
+- Add `system.memory.limit` metric.
+  ([#346](https://github.com/open-telemetry/semantic-conventions/pull/346))
 
 ## v1.21.0 (2023-07-13)
 
diff --git a/model/metrics/system-metrics.yaml b/model/metrics/system-metrics.yaml
index cfd20979f2..b49e0dad17 100644
--- a/model/metrics/system-metrics.yaml
+++ b/model/metrics/system-metrics.yaml
@@ -120,6 +120,13 @@ groups:
     attributes:
       - ref: system.memory.state
 
+  - id: metric.system.memory.limit
+    type: metric
+    metric_name: system.memory.limit
+    brief: "Total bytes of memory available"
+    instrument: updowncounter
+    unit: "By"
+
   # system.paging.* metrics and attribute group
   - id: attributes.system.paging
     prefix: system.paging